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Polyphosphoric acid

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Polyphosphoric acid Basic information

Product Name:
Polyphosphoric acid
CAS:
8017-16-1
MF:
(H)n+2.(P)n.(O)3n+1
MW:
0
EINECS:
232-417-0
Mol File:
Mol File
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Polyphosphoric acid Chemical Properties

Melting point:
-20°C
Boiling point:
550 °C
Density 
2.06 g/mL at 25 °C
vapor pressure 
2 hPa (20 °C)
storage temp. 
Store below +30°C.
form 
Viscous Liquid
color 
Colorless
Specific Gravity
2.06
Water Solubility 
MAY DECOMPOSE
Sensitive 
Hygroscopic
Merck 
14,7580
Stability:
Stable. Incompatible with strong bases. Hygroscopic.
CAS DataBase Reference
8017-16-1(CAS DataBase Reference)
EPA Substance Registry System
Polyphosphoric acids (8017-16-1)
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Safety Information

Hazard Codes 
C
Risk Statements 
34
Safety Statements 
45-36/37/39-25-26
RIDADR 
3264
WGK Germany 
1
TSCA 
Yes
HazardClass 
8
PackingGroup 
III
HS Code 
28092000
Hazardous Substances Data
8017-16-1(Hazardous Substances Data)

MSDS

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Polyphosphoric acid Usage And Synthesis

Chemical Properties

Viscous, water-white liquid. Water solu- ble. Does not crystallize on standing; hygroscopic. The commercial acid is a mixture of orthophos- phoric acid with pyrophosphoric, triphosphoric, and higher acids and is sold on the basis of its calcu- lated content of H3PO4, e.g., 115%. Superphospho- ric acid is a similar mixture sold at 105% H3PO4. These acids revert slowly to orthophosphoric acid on dilution with water.

Uses

Dehydrating, catalytic, and sequestering agents, for metal treating; many applications where a con- centrated monooxidizing acid is needed; laboratory reagent.

Definition

ChEBI: A polymerized phosphorus oxoacid of general formula HO[PO2OH]nH formed by condensation of orthophosphoric acid molecules and containing a backbone chain consisting of alternating P and O atoms covalent y bonded together.

Hazard

Toxic by ingestion; strong irritant.

Agricultural Uses

Polyphosphoric acid is obtained by heating the wetprocess phosphoric acid. It contains around 72% phosphorus (as P2O5) and represents a series of phosphoric acids containing more than one atom of phosphorus (such as H4P2O7). The general formula is Hn+2PnO3n+1.

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Polyphosphoric acidSupplierMore

Shanghai Kaisai Chemical Co., Ltd Gold
Tel:
021-33516711 , 33516722
Email:
kaisaichem@163.com
Shanghai Aladdin Bio-Chem Technology Co.,LTD Gold
Tel:
021-20337333/400-620-6333
Email:
sale@aladdin-e.com
Shanghai Song Yuan Chemical Technology Co., Ltd. Gold
Tel:
18521000990
Email:
1492698924@qq.com
J & K SCIENTIFIC LTD.
Tel:
010-82848833- ;010-82848833-
Email:
jkinfo@jkchemical.com;market6@jkchemical.com
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel:
21-61259100-
Email:
sh@meryer.com
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